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Finding the Fourth Proportional to 94,784.62, 130,840.94 and 64,600.45

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Solution

The fourth proportional to 94,784.62, 130,840.94 and 64,600.45 is: 89,174.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,784.62 : 130,840.94 = 64,600.45 : x
  2. Step 2: Convert to fraction form
    94,784.62/130,840.94 = 64,600.45/x
  3. Step 3: Cross multiply
    94,784.62x = 130,840.94 × 64,600.45
  4. Step 4: Simplify right side
    94,784.62x = 8,452,383,602.42
  5. Step 5: Solve for x
    x = 8,452,383,602.42/94,784.62
  6. Step 6: Final answer
    x = 89,174.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.